The Apricot Valley Copper Mine was a copper mine developed after the founding of the nation.
Its scale was not small, production was high, and resources were depleted quickly.
By the turn of the century, it was no longer worth extracting here. What followed was a variety of surface backfilling.
The subcontractor whom Tan Yong worked for had taken on this project.
However, due to reasons such as the return of project funds, the surface backfill work would occur in spurts, pausing intermittently and not proceeding continuously.
Clearly, this afforded Tan Yong a great opportunity.
For the purpose of backfilling the air shaft, the company had already opened up the access route to that area, and vehicles would come every so often, making Tan Yong's presence not at all conspicuous.
There were no gatekeepers or guards here anymore, so with completely free entry, the security for disposing of bodies was significantly heightened.